As the calendar moves closer to harvest, many farmers are looking to gauge yield expectations in soybean fields. In this week’s segment, Precision Agronomist Phil Long explains the correlation between node count, spacing, population and yield.
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Latham Hi‑Tech Seeds
#AskTheAgronomist: High-Yield Soybeans and Node Count
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Latham Hi‑Tech Seeds
6 Tips for Harvesting Corn Silage in Drought Conditions
Drought-stressed corn can create a range of silage harvest issues. With much of Latham Country experiencing abnormal to extreme drought conditions, risks such as high nitrate levels, variable moisture content and potential for yeasts, molds and mycotoxins must be accounted for and well understood.
Taking extra precautions to ensure a safe and productive corn silage harvest is a worthy investment. Here are a few key considerations to keep in mind this summer and fall.
- Consult your team. Before you make any corn silage harvest decisions, verify your plan doesn’t impact your insurance coverage. It’s also good to discuss feed-out plans with an animal nutritionist so you have a plan for when and how the forage will be used.
- Test chopping height. As you prepare to harvest silage, test various chopping heights for nitrates. Nitrate concentration tends to lessen as chopping height increases. Measure your chopping height and then send a 5-inch stalk sample to the lab. It is best to send at least two samples. By testing different heights across the plant, it gives you a general idea of nitrate hot zones. Also, remember that recent rains can increase nitrate levels.If you harvest high on the stalk to avoid high nitrate levels, your tonnage will be reduced. It is estimated that you harvest 1 ton per foot of no ear or poorly eared corn.
- Monitor moisture content. As fields vary, so too will harvest moisture. Ideally, you want to get to 65% whole plant moisture. If it is drier, packing can be difficult but mixing in small particles can help if needed.
- Test on harvest day. Testing nitrate levels on harvest day will give you a good frame of reference for the final product. If it shows high, do not feed it to pregnant animals, and consult with your nutritionist regarding feeding to it the rest of your livestock. Allow this crop to ensile at least 21 days, and then retest.
- Innoculate. Anything to help ensile and preserve the forage after chopping is important. Because drought-stressed corn can be so variable in content, moisture and packing densities, it can lead to potential issues with high nitrates, mold, yeasts and mycotoxins. A good inoculant can help the fermentation process and reduce any further problems during feed out.
- Test before you feed. Ensiling can help reduce nitrate levels by as much as 40-60%, but the final nitrate levels can be dependent on good packing. It is always best to test before you feed silage to livestock. As a rule of thumb, take at least two samples from different areas of the silage pack. One sample is just a number, two samples start the trend and three samples add confidence. There is just too much at stake to risk nitrate poisoning.
While Mother Nature can certainly throw some unexpected curve balls our way, these tips can help you make the best of a not-so-ideal harvest scenario.
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Latham Hi‑Tech Seeds
#AskTheAgronomist: Which Yield Factor is Most Important?
Which yield factor has the most bearing on final yield: kernel round, ear length or test weight? Precision Agronomist Phil Long and Intern Kirsten Suntken do the math in this segment of #AskTheAgronomist.
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Latham Hi‑Tech Seeds
#AskTheAgronomist: Corn Rootworm Pressure Now and Into the Future
Corn rootworm pressure has been steadily increasing over the past few years across the Midwest. Precision Agronomy Advisor Phil Long discusses how to identify and gauge pest pressure in your fields and plan for the future.
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Latham Hi‑Tech Seeds
#AskTheAgronomist: Soybean Cupping and Recovery
Each year, many farmers observe cupping in soybeans for a variety of reasons ranging from herbicide drift to environmental factors. Precision Agronomist Phil Long covers how to stage damage and evaluate recovery potential.
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Latham Hi‑Tech Seeds
Scout Alfalfa for These Damaging Pests
As with all crops, scouting alfalfa acres is key to controlling pests. Each pest has a different life cycle based on different variables, such as heat and moisture. While weather plays a key role, there are still cyclical patterns in which pests are more common. Below is a chart showing the most damaging pests to scout for according to season.
Potato Leafhopper and Pea Aphids are the two pests that cause the most damage annually across Latham Country. Many farmers question how to judge when spraying an insecticide is a wise choice. Below are some tips to help you scout fields and arrive at a decision.
- WHAT TO LOOK FOR. Scouting should begin five to seven days after the first cutting is taken and should continue weekly or bi-weekly if population counts reach close to threshold on a particular day. When scouting for Potato Leafhoppers, look for stunted plants, yellowing leaves in a v-shaped pattern beginning at the leaf tip, as well as “hopperburn,” or a red edge found on the leaf. This red burn can be easily confused for Boron deficiency. Pea Aphids will cause plants to lose their green color and wilt.
- HOW TO TAKE SWEEP SAMPLES. The easiest way to scout for these insects is to use a small sweep net. Walk a W-shaped pattern in the field, taking samples from five randomly selected areas. Leafhopper infestations generally begin on the edges of the field, so include these areas in your checks. Tips for Taking Sweep Samples:
- Swing the sweep net in a 180-degree arc, so the net rim strikes the top 6 to 8 inches of growth. Each 180-degree arc is one “sweep.”
- Take a sweep from right to left, walk a step, take another sweep from left to right, and so on.
- After taking five sweeps, quickly close the net and count the number of each insect.
- Divide this number by five to get the average for that area; record the average for each of the five areas in the field.
- THRESHOLDS AND TREATMENT. A plant’s immune system tends to handle more pressure as alfalfa matures, however, the harmful compounds that each insect species injects while feeding can reduce yields. When left unmanaged, severe cases can shorten the life cycle. Treatment for Potato Leafhoppers and Pea Aphids can follow these guidelines.
Early harvests often can be used to control both leafhoppers and aphids. Insecticides are a tool to help alter the life cycle of a pest and are especially helpful if thresholds are reached when alfalfa is small. Several insecticides are labeled for alfalfa with different classes and modes of action. Most have a harvest wait period depending on class and rate used. Be sure to follow the label guidelines closely. As with herbicides, alternating modes of action reduces the risk of resistant pests.
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Latham Hi‑Tech Seeds
Finding the Right Products for Your Farm
At Latham Hi‑Tech Seeds, we take pride in our ability to identify the best corn hybrids and soybean varieties to match our customers’ needs. We take time to listen to our sales team, which includes our dealers, talk about the needs of farmers across Latham Country. Their information about desired characteristics helps direct our research and testing efforts.
The journey to finding new products begins with our robust collaborative access to germplasm. Latham’s Product Team works in conjunction with many germplasm sources, including our own, to fuel our search to find the best products for the specific geographic regions we serve. We also have great relationships with trait providers to bring needed traits into our products. After we either find or create the desired genetic combinations, we move into the evaluation stage of our process.
Our Elite Trial program continues to grow with additional test locations across our sales footprint. We are testing in every corner of Latham Country. This means that we test products where they would be sold, which allows us to find unique niche products that excel in a local environment.
To help position products to fulfill our needs assessment, our regional sales managers (RSMs) get an early look at the products we’re considering for our lineup. Having “in-trial” conversations about products with our sales team is a tremendous benefit to Latham’s Product Teams. In addition, conversations about products in trials helps builds confidence with our sales team to position products. We have consolidated both our corn and soybean evaluation processes into one Elite Trial system, which allows our product teams to assess data more easily.
Once we identify products from the Elite Trials that meet Latham Hi‑Tech Seeds’ standards and fulfill our customers’ needs, we release them for sale. We also place these new products in our Latham Showcase plots, as well as in the independent F.I.R.S.T. Trials program, to once again showcase the performance of these new products and to provide opportunities for our customers to gain confidence in their performance.
Latham’s track record of performance in our Showcase plots and F.I.R.S.T. Trials proves the system we have built works! Our process of beginning with a large diverse pool of genetics; testing potential new products thoroughly in all parts of our footprint; and proving our performance in our final stages of Latham Showcase and F.I.R.S.T. Trial plots complete our journey in finding outstanding products.
I’m so excited about the products we’re testing this summer and look forward to talking about them in more detail at our upcoming field days. Watch your mail and social media for more details coming soon!
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Latham Hi‑Tech Seeds
Keep Track of the Little Details
How often do you make the same mistake?
Repeat mistakes happen when we don’t record exactly where we saw an issue in a particular field. Every year has its curveballs, and 2021 is no different. Planting progressed quickly, but then we experienced cold soils followed by really hot temps. Some areas also received a late frost and hail. Now, most of Latham Country is experiencing extremely dry conditions.
One of the best ways I’ve found to track environmental conditions and a crop’s response to it is Latham’s Data Forward™ app. I use this app to take specific field notes as I’m walking fields. This year IDC and other deficiencies made a big appearance once we received some rain and the soybeans started growing. You can use the Data Forward app to outline these areas. You can even create a management zone, using your phone, to make a map for spreading fertilizer or applying a product with your planter only in those areas.
Data Forward also can be used to drop a pin in tough areas, so you can take tissue samples to the lab. When the lab results come back, they will show up in the Data Forward app. How cool is that? You will never lose results this way. All of the details help you can really dial in your management. The first management step for IDC is selecting a top IDC-rated, Ironclad™ soybean variety. Only the toughest Latham® soybeans earn this designation. If IDC is a recurring problem, you could invest in a planter set up to apply a chelated iron product close to the roots. Another option is to invest in tile to help drain those lower areas with high pH or salt issues.
One unique tool on the premium version of our Data Forward app is satellite imagery. While sipping your morning coffee, you can discover problem areas in a field. Imagery is like that torque wrench in your toolbox… If you know how to use it, it can save you from breaking a lot of bolts. If you don’t, it’s just another ratchet in the toolbox.
By tracking what happens and where, we can make these changes to address agronomic challenges. Talk to your Latham dealer, Regional Sales Manager (RSM) or give me a call to learn more about how Data Forward can help you move your farm’s data forward with confidence!
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Latham Hi‑Tech Seeds
Planting Depth Matters
The below is a look at an on-farm planting depth study conducted by our sales representative from southeast Iowa. Photos were taken in the same field, the same location, planted the same day with the same hybrid. The only variation between each is planting depth. The hybrid shown is LH 6477 VT2 PRO planted on May 12 and the photos are from the last week of June.
Planting depths are as follows:
- On top of the ground to ¼-inch planting depth
- ¾ to 1-inch planting depth
- 1 to 1 ¼-inch planting depth
- 2 to 2 ¼-inch planting depth
Those planted at optimal depth have much better nodal roots and root mass to anchor that plant into the rapid growth stages we’re observing now.
Comparison of planting depth using hybrid LH 6477 VT2 PRO planted May 12 at the same field and location. 
On top of the ground to ¼-inch planting depth 
¾ to 1-inch planting depth 
1 to 1 ¼-inch planting depth 
2 to 2 ¼-inch planting depth -
Latham Hi‑Tech Seeds
#AskTheAgronomist: Pollination and Silk Growth, Part 2
In Part 2 of this series on pollination and silk growth, Latham’s Pre-Commercial Product Manager Bob Foley further explains how the silk to pollen interaction translates into final yield. Watch Part 1 of the series here.
